** Description changed:

+ Ubuntu groovy and up upgraded to libffi8ubuntu1, thus making Ubuntu
+ incompatible with 3rd-party binaries that desire to use libffi7.
+ 
+ Let's backport and provide libffi7 runtime library only, for those.
+ 
+ Not sure how that would work with ctypes though.
+ 
+ 
+ ---
+ 
  I've just upgraded to Ubuntu 20.10 which comes with python3-openssl
  version 19.0.1-2.  It breaks (at least some) Python applications that
  use the `requests` library to access HTTPS URLS.  For instance, this
  stack trace (note that I have clipped the first few frames from the
  stack as they are proprietary):
  
-   File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 76, in get
-     return request('get', url, params=params, **kwargs)
-   File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 61, in request
-     return session.request(method=method, url=url, **kwargs)
-   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
530, in request
-     resp = self.send(prep, **send_kwargs)
-   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
643, in send
-     r = adapter.send(request, **kwargs)
-   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/adapters.py", line 
439, in send
-     resp = conn.urlopen(
-   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 670, 
in urlopen
-     httplib_response = self._make_request(
-   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 381, 
in _make_request
-     self._validate_conn(conn)
-   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 978, 
in _validate_conn
-     conn.connect()
-   File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 342, in 
connect
-     self.ssl_context = create_urllib3_context(
-   File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 289, in 
create_urllib3_context
-     context.verify_mode = cert_reqs
-   File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 
438, in verify_mode
-     self._ctx.set_verify(_stdlib_to_openssl_verify[value], _verify_callback)
-   File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1119, in 
set_verify
-     self._verify_helper = _VerifyHelper(callback)
-   File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 337, in __init__
-     self.callback = _ffi.callback(
+   File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 76, in get
+     return request('get', url, params=params, **kwargs)
+   File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 61, in request
+     return session.request(method=method, url=url, **kwargs)
+   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
530, in request
+     resp = self.send(prep, **send_kwargs)
+   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
643, in send
+     r = adapter.send(request, **kwargs)
+   File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/adapters.py", line 
439, in send
+     resp = conn.urlopen(
+   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 670, 
in urlopen
+     httplib_response = self._make_request(
+   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 381, 
in _make_request
+     self._validate_conn(conn)
+   File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 978, 
in _validate_conn
+     conn.connect()
+   File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 342, in 
connect
+     self.ssl_context = create_urllib3_context(
+   File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 289, in 
create_urllib3_context
+     context.verify_mode = cert_reqs
+   File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 
438, in verify_mode
+     self._ctx.set_verify(_stdlib_to_openssl_verify[value], _verify_callback)
+   File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1119, in 
set_verify
+     self._verify_helper = _VerifyHelper(callback)
+   File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 337, in __init__
+     self.callback = _ffi.callback(
  SystemError: ffi_prep_closure(): bad user_data (it seems that the version of 
the libffi library seen at runtime is different from the 'ffi.h' file seen at 
compile-time)

** Also affects: libffi (Ubuntu)
   Importance: Undecided
       Status: New

** Summary changed:

- python3-openssl appears to be built against the wrong version of libffi
+ libffi7 missing from Ubuntu (pip's python3-openssl appears to be built 
against the wrong version of libffi)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libffi in Ubuntu.
https://bugs.launchpad.net/bugs/1903890

Title:
  libffi7 missing from Ubuntu (pip's python3-openssl appears to be built
  against the wrong version of libffi)

Status in libffi package in Ubuntu:
  New
Status in pyopenssl package in Ubuntu:
  Confirmed
Status in libffi source package in Groovy:
  New
Status in pyopenssl source package in Groovy:
  New

Bug description:
  Ubuntu groovy and up upgraded to libffi8ubuntu1, thus making Ubuntu
  incompatible with 3rd-party binaries that desire to use libffi7.

  Let's backport and provide libffi7 runtime library only, for those.

  Not sure how that would work with ctypes though.

  
  ---

  I've just upgraded to Ubuntu 20.10 which comes with python3-openssl
  version 19.0.1-2.  It breaks (at least some) Python applications that
  use the `requests` library to access HTTPS URLS.  For instance, this
  stack trace (note that I have clipped the first few frames from the
  stack as they are proprietary):

    File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 76, in get
      return request('get', url, params=params, **kwargs)
    File "/home/tkcook/.local/lib/python3.8/site-packages/requests/api.py", 
line 61, in request
      return session.request(method=method, url=url, **kwargs)
    File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
530, in request
      resp = self.send(prep, **send_kwargs)
    File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/sessions.py", line 
643, in send
      r = adapter.send(request, **kwargs)
    File 
"/home/tkcook/.local/lib/python3.8/site-packages/requests/adapters.py", line 
439, in send
      resp = conn.urlopen(
    File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 670, 
in urlopen
      httplib_response = self._make_request(
    File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 381, 
in _make_request
      self._validate_conn(conn)
    File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 978, 
in _validate_conn
      conn.connect()
    File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 342, in 
connect
      self.ssl_context = create_urllib3_context(
    File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 289, in 
create_urllib3_context
      context.verify_mode = cert_reqs
    File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 
438, in verify_mode
      self._ctx.set_verify(_stdlib_to_openssl_verify[value], _verify_callback)
    File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 1119, in 
set_verify
      self._verify_helper = _VerifyHelper(callback)
    File "/usr/lib/python3/dist-packages/OpenSSL/SSL.py", line 337, in __init__
      self.callback = _ffi.callback(
  SystemError: ffi_prep_closure(): bad user_data (it seems that the version of 
the libffi library seen at runtime is different from the 'ffi.h' file seen at 
compile-time)

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